ARM: at91/dt: add trng node to at91sam9g45

Add a DT node for the TRNG (True Random Number Generator) block.

Keep this block enabled as it does not depend on any external connection,
and thus should be available on all boards.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

arch/arm/boot/dts/at91sam9g45.dtsi

@@ -940,6 +940,13 @@
 				status = "disabled";
 			};
 
+			trng@fffcc000 {
+				compatible = "atmel,at91sam9g45-trng";
+				reg = <0xfffcc000 0x4000>;
+				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 0>;
+				clocks = <&trng_clk>;
+			};
+
 			i2c0: i2c@fff84000 {
 				compatible = "atmel,at91sam9g10-i2c";
 				reg = <0xfff84000 0x100>;